Trace-chain.



No.682,538. Patented Sept..|0, I90l.

I 0. FOX.

TRACE CHAIN.

(Application filed Feb. 11, 1901.)

(No Model.)

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UNITED STATEs PATENT OFFICE.

DAVID FOX, OF VALLEY STATION, oANADA, ASSIGNOR or ONE-FOURTH TO GEO. J. MOSHER, OF TRURO, NovA sooTIA, oANADA.

TRACE-CHAIN.

SPECIFICATION forming part of Letters Patent No. 682,538, dated September 10, 1901.-

' Application filed February 11,1901. sum No. 46,955. (No model.)

To all whom it may concern:

Be it known that I, DAVID FOX, aBritish subject, residing at Valley Station, in the county of Oolchester, in the Province of Nova Scotia and Dominion of Canada, have invented a new and useful Improvement in Trace- Ohains, of which the following is a specification.

My invention relates to an improvement in trace-chains in which tug-chains are used to connect the leather traces to the singletree; and theobject of my invention is to provide a device to prevent the grab-link on the tugchain from becoming accidentally displaced or from changing its position on the chain when the chain becomes slack.- I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan of a tug-chain with its grab-link as it is now used without my in- Fig. 2 is an elevation of the grablink. Fig. 3 isa plan of a tug-chain with its grab-link, showing the manner of the adj ustment of my device. Fig. 4 is an elevation of a ring, which is shown in Fig. 3 encircling two parts of the chain. Fig. 5 is a plan ofa tug-chain, showing the final adjustment of my device and the chain ready for use. Fig. 6 is an elevation of the grab-link encircled by the ring, as shown in plan in Fig. 5.

Similarlettersrefer tosimilarparts through out the several views.

In the drawings, a is a grab-link which will fit on any link of the chain and by which the length of the trace is adjusted.

b is a link on the end of the chain, by which it is attached to the leather trace of the harness.

c is that part of the chain which is encircled by and works in the ring of the singletree.

gether, but will not allow it to pass over the how of the grab-link;

My invention, which is applicable to and can'be combined with any chain on which a grab-link is used, is combined with a tugchain in the following manneri The end of the chain 11 is passed through a ring on the singletree and then through the bow of the grab-link a. The chain is then adjusted to the required length, and the end I) is again passed through the ring d, as shown in Fig. 3. The ring now encircling two parts of the chain is moved until it rests on the neck or contracted part of the grab-link d, as shown in Figs. 5 and 6, effectually securing the link from accidental displacement;

Having illustrated and described my invention and the method of its application, what I claim, and desire to secure by Letters Patent, is

1. In a trace-chain the combination of the tug-chain with the grablink a, and the ring (1; substantially as and for the purpose herein described and set forth.

2. A chain having attached to one end an endless hook with a contracted and curved neck adapted to clasp-and hold on any part of the chain, in combination with a ring adapted to encircle and to be moved over two parts of said chain onto the neck of the endless hook; substantially as, and for the purposes herein specified and set forth.

HUGH MACKENZIE, EDWARD CHRISTIE. 

